Sewing-machine tucker.



PATENTED JUNE 12, 1906.

P. OILDHAM. SEWING MACHINE TUCKER.

APPLICATION FILED MAY 8, 1905.

da rz zdiy'azcmam Inventor,

' Witnesses:

Attorneys,

UNIT D STATES CARRICK PARK )LDHAM, OF

PATENT OFFICE.

NEWTON, KANSAS, ASSIGNOR OF ONE-THIRD Specification of Letters Patent.

Patented June 12, 1906.

Application filed May 8, 1905. Serial No. 25 9,470.

To all whom it may concern.-

Be it known that I, CARRIOK PARK OLD- HAM, a citizen of the UnitedStates, residing at Newton, in the county of Harvey and State of Kansas,have invented a new and useful Sewing-Machine Tucker, of which thefollowing is a specification.

This invention relates to sewing-machine tuckers.

The object of the invention is provide a tucker adapted moreparticularly for use in tucking Woolen goods or goods that will notcrease or lie down flat, the construction and operation of the tuckerbeing such that the goods will be positively guided beneath thepresser-foot of the machine and the crease formed and held untilstitched.

A further object is:to simplify the construction of such attachments, toreduce liability of damage to a minimum, and to adapt it for attachmentto a machine already in use without requiring any extended change in thestructural arrangement of the latter.

With the above and other objects in view, as will appear as the natureof the invention is better understood, the same consists in the novelconstruction and combination of parts of a tucker for sewing-machines,as will be hereinafter fully described and claimed.

In the accompanying drawings, forming a part of this specification, andin which like characters of'reference indicate corresponding parts,Figure 1 is a view in perspective exhibiting the attachment of thepresent invention combined with a sewing-machine, the operative positionof the tucker being indicated in full lines and its inoperative positionby dotted lines. Fig. 2 is an inverted perspective view of a combinedtuck-width gage and fold-plate used in conjunction with the tuckingmember. Fig. 3 is a view in transverse section through a portion of thetucking member, exhibiting more particularly the means by which it maybe held out of operative position. Fig. 4 is a view in elevation showingmore particularly a portion of the mechanism for locking the tuckingmember in operative position. Fig. 5 is a vertical transverse sectionalview through the tucking member Referring to the drawings, 1 designatesthe machine-head, which may be of the usual or any preferredconstruction and having the orwhich are disposed in alinement and areperforated to receive one member 9 of a double- L arm 10, the othervertical member 11 of which carries the tucking member 12. The member 9is provided with a spiral groove 13, terminating at one end of atransversely-disposed orifice 14, which extends through the arm member9, the groove and orifice being engaged by a curved stop member 15, thatextends from one edge of the extension 5, as clearly shown in Fig. 3.The stop member by coaction with the spiral groove Will cause thetucking member 12 to be depressed when the arm is swung to the positionshown in full lines in Fig. 1 and to be raised to move the tuckingmember above the plane of the goods or of the sewing-machine table whenswung in the opposite direction to the position shown in dotted lines inFig. 1, it being observed that the swinging movements of the arm causeit by means of the spiral groove and stop member to move in aspiralpath. When the tucking member is in the last-named position, the stopengages with the wall of the orifice 14, and thus positively preventsfurther turning of the tucking member to inoperative position. To lookthe tucker in the position shown in full lines, the member 9 of the armis provided with a locking-dog 16, having a tooth 17, which is adaptedto engage with a notch 18 of a locking-spring 19, pivoted or otherwisesecured to the extension 7. When the tucking member is locked inposition by the engagement of the tooth with the notch 18, it will beheld positively against movement during the operation of tucking,"

but when the tucking member is to be released it will be only necessaryto press the spring toward the extension 7, whereupon the tooth of thelocking-dog will be free from engagement with the locking-spring,thereby leaving the arm free to be swung to its inoperative position.

The tucking member 12 is a disk of metal and is provided with a centralorifice, through which projects the reduced terminal 20 of the member11, a screw 21, countersunk in the disk and engaging the end of themember, serving to hold the disk in position for free revolublemovement. The combined tuckwidth gage and fold-plate referred to em-,

bodies a base 22, secured to which and ex.- tending at right anglesthereto is a workguide 23, the under side of the base being providedwith studs or legs 24, which are of a height equal to that of thework-guide, whereby when the attachment is disposed upon the table of asewinganachine it will 00- cupy a horizontal position. The tuck-widthgage and fold-plate 25 rests upon the upper face of the base and is heldadjustably combined therewith by a pair of tongues 26, formed byslitting the opposite edges of the work-plate and turning the metal thusfreed under to form guides, as clearly shown in Fig. 2. The fold-plateand base are held combined with the sewing-machine table by means of athumb-screw 27, which projects through a longitudinal slot 28 in thefoldplate and through an orifice 29 in the base and engages a suitablethreaded opening in the machine-table. One edge of the foldplate, asusual, is provided with graduationmarks 30, which by coaction with theworkguide 23 will determine the width of the tuck to be made.

In the use of the attachment when the same is positioned upon themachine in the manner shown the rotary tucking member is moved to theposition shown by dotted lines in Fig. 1. The tuck-width gage havingbeen adjusted to give the tucker the proper width, the goods are laidthereon, and the arm 10 is then swung around, causing the tucking memberto press the goods tightly against the work-guide and under thetuck-width gage, and when the parts are in this position the tooth ofthe locking-dog will engage with the notch of the locking-spring, andthus hold the parts properly combined. When a tuck has been completed,the spring 19 is operated to release the locking-dog 16, whereupon thetucking member is moved to inoperative position, a fresh tuck arranged,and the operation again repeated.

It will be seen from the foregoing description that by the movement ofthe revoluble tucking member positive tucking of goods otherwisediflicult to operate will be positively secured, that any drawing of thegoods will be obviated, owing to the fact that the tucking memberrotates in the direction of the movement of the goods, and therebyobviates strain, and, further, that by the rolling feature of thetucking member goods out upon the bias may be tucked equally. as well asthose out transversely or longitudinally of the goods.

Having thusdescribed the invention, what is claimed is 1. A tuckerembodying a double- L-shaped support adapted for swinging movements andprovided with a spiral groove, a revoluble tucking element carried byone member of the support, and a locking device engaging the groove andoperating to convert the swinging movements into spiral movements whenthe support is moved to operative and inoperative positions.

2. A tucker embodying a double L-shaped supporting-arm one member ofwhich is provided with a locking-dog and with a spiral grooveterminating in an orifice, a rotary tucking element combined with theother member, a bracket in which the first-named member is journaled, alocking-spring carried by the bracket to engage the locking-dog to holdthe tucking element in operative position, and a stop carried by thebracket and engaging the groove and orifice to raise the tucking memberand to hold it in inoperative position.

3. A tucker embodying a double- L-shaped support adapted for swingingmovements and provided with a spiral groove, a revoluble tucking elementcarried by one member of the support, a locking device engaging thegroove and operating to convert the swinging movements into spiralmovements when the support is moved to operative and inoperativepositions, a base carrying a workguide, and a combined tuck-width gageand fold-plate adjustable longitudinal of the base and having one enddisposed over the tucking member when the latter is in operativeposition.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

OARRIOK PARK OLDHAM.

Witnesses:

H. M. JUELKrNs, WILLIAM OLL.

